Bump intersection-observer from 0.10.0 to 0.11.0

Bumps [intersection-observer](https://github.com/w3c/IntersectionObserver) from 0.10.0 to 0.11.0.
- [Release notes](https://github.com/w3c/IntersectionObserver/releases)
- [Commits](https://github.com/w3c/IntersectionObserver/commits)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Author: dependabot-preview[bot]

package-lock.json

@@ -83,7 +83,7 @@
     "@datagraphics/prettier-config": "^2.0.0",
     "@zeit/git-hooks": "^0.1.4",
     "classlist-polyfill": "^1.2.0",
-    "intersection-observer": "^0.10.0",
+    "intersection-observer": "^0.11.0",
     "np": "^6.2.4",
     "preact": "^10.4.4",
     "precise-commits": "^1.0.2",